If you say so. Then how would I move the frogs without touching them? Their way to active for some kind of dip net.

I give you an advice: don´t compare humans, mammals or birds with amphibians (...reptiles or fish).
Funny... since in Europe (at least in Germany for sure) the amount of people actually believing that all these had some common ancestors is getting bigger.

Obviously they will behave differently in other set up. They segregate more toxins in this or similar situations.
Why would some of them move around more in this case? And why not all of them?

One more adevice: if you want the best for your animals, follow the advice the people in this forums give you.
I'm not someone to blindly follow advice. But If you explain things to me rationally (like you did, thanks for that) I'll do everything for them.